The effect of stone-filling on the progress of the exploision of a hydrogen - air mixture in a container

The investigation dealt with the problem of suppressing a detonation in a container by filling the space with stones. The experiments were made with 5 different types of filling. The detonations were produced by the ignition of a mixture of air and hydrogen. The events of pressure-time were recorded at 6 points of a vertical tube with L=240 cm and D=25 cm. A small-scale experiment was made by measuring the total impulse which was propogated to the bottom of a small tube with L=70 cm. The investigation was past of a cooperative Swedish programme, the FILTRA project. (G.B.)